Home / 123,506.16-170,438.54-66,917.13

Finding the Fourth Proportional to 123,506.16, 170,438.54 and 66,917.13

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Solution

The fourth proportional to 123,506.16, 170,438.54 and 66,917.13 is: 92,345.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,506.16 : 170,438.54 = 66,917.13 : x
  2. Step 2: Convert to fraction form
    123,506.16/170,438.54 = 66,917.13/x
  3. Step 3: Cross multiply
    123,506.16x = 170,438.54 × 66,917.13
  4. Step 4: Simplify right side
    123,506.16x = 11,405,257,938.19
  5. Step 5: Solve for x
    x = 11,405,257,938.19/123,506.16
  6. Step 6: Final answer
    x = 92,345.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.